1. 24 12月, 2014 3 次提交
    • J
      arm64: mm: Add pgd_page to support RCU fast_gup · 5d96e0cb
      Jungseok Lee 提交于
      This patch adds pgd_page definition in order to keep supporting
      HAVE_GENERIC_RCU_GUP configuration. In addition, it changes pud_page
      expression to align with pmd_page for readability.
      
      An introduction of pgd_page resolves the following build breakage
      under 4KB + 4Level memory management combo.
      
      mm/gup.c: In function 'gup_huge_pgd':
      mm/gup.c:889:2: error: implicit declaration of function 'pgd_page' [-Werror=implicit-function-declaration]
        head = pgd_page(orig);
        ^
      mm/gup.c:889:7: warning: assignment makes pointer from integer without a cast
        head = pgd_page(orig);
      
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Steve Capper <steve.capper@linaro.org>
      Signed-off-by: NJungseok Lee <jungseoklee85@gmail.com>
      [catalin.marinas@arm.com: remove duplicate pmd_page definition]
      Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
      5d96e0cb
    • W
      arm64: defconfig: defconfig update for 3.19 · f7bf130e
      Will Deacon 提交于
      The usual defconfig tweaks, this time:
      
        - FHANDLE and AUTOFS4_FS to keep systemd happy
        - PID_NS, QUOTA and KEYS to keep LTP happy
        - Disable DEBUG_PREEMPT, as this *really* hurts performance
      Signed-off-by: NWill Deacon <will.deacon@arm.com>
      Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
      f7bf130e
    • L
      arm64: kernel: fix __cpu_suspend mm switch on warm-boot · f43c2718
      Lorenzo Pieralisi 提交于
      On arm64 the TTBR0_EL1 register is set to either the reserved TTBR0
      page tables on boot or to the active_mm mappings belonging to user space
      processes, it must never be set to swapper_pg_dir page tables mappings.
      
      When a CPU is booted its active_mm is set to init_mm even though its
      TTBR0_EL1 points at the reserved TTBR0 page mappings. This implies
      that when __cpu_suspend is triggered the active_mm can point at
      init_mm even if the current TTBR0_EL1 register contains the reserved
      TTBR0_EL1 mappings.
      
      Therefore, the mm save and restore executed in __cpu_suspend might
      turn out to be erroneous in that, if the current->active_mm corresponds
      to init_mm, on resume from low power it ends up restoring in the
      TTBR0_EL1 the init_mm mappings that are global and can cause speculation
      of TLB entries which end up being propagated to user space.
      
      This patch fixes the issue by checking the active_mm pointer before
      restoring the TTBR0 mappings. If the current active_mm == &init_mm,
      the code sets the TTBR0_EL1 to the reserved TTBR0 mapping instead of
      switching back to the active_mm, which is the expected behaviour
      corresponding to the TTBR0_EL1 settings when __cpu_suspend was entered.
      
      Fixes: 95322526 ("arm64: kernel: cpu_{suspend/resume} implementation")
      Cc: <stable@vger.kernel.org> # 3.14+: 18ab7db6
      Cc: <stable@vger.kernel.org> # 3.14+: 714f5992
      Cc: <stable@vger.kernel.org> # 3.14+: c3684fbb
      Cc: <stable@vger.kernel.org> # 3.14+
      Cc: Will Deacon <will.deacon@arm.com>
      Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
      Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
      f43c2718
  2. 22 12月, 2014 1 次提交
  3. 21 12月, 2014 8 次提交
    • L
      Linux 3.19-rc1 · 97bf6af1
      Linus Torvalds 提交于
      97bf6af1
    • L
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux · 60815cf2
      Linus Torvalds 提交于
      Pull ACCESS_ONCE cleanup preparation from Christian Borntraeger:
       "kernel: Provide READ_ONCE and ASSIGN_ONCE
      
        As discussed on LKML http://marc.info/?i=54611D86.4040306%40de.ibm.com
        ACCESS_ONCE might fail with specific compilers for non-scalar
        accesses.
      
        Here is a set of patches to tackle that problem.
      
        The first patch introduce READ_ONCE and ASSIGN_ONCE.  If the data
        structure is larger than the machine word size memcpy is used and a
        warning is emitted.  The next patches fix up several in-tree users of
        ACCESS_ONCE on non-scalar types.
      
        This does not yet contain a patch that forces ACCESS_ONCE to work only
        on scalar types.  This is targetted for the next merge window as Linux
        next already contains new offenders regarding ACCESS_ONCE vs.
        non-scalar types"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux:
        s390/kvm: REPLACE barrier fixup with READ_ONCE
        arm/spinlock: Replace ACCESS_ONCE with READ_ONCE
        arm64/spinlock: Replace ACCESS_ONCE READ_ONCE
        mips/gup: Replace ACCESS_ONCE with READ_ONCE
        x86/gup: Replace ACCESS_ONCE with READ_ONCE
        x86/spinlock: Replace ACCESS_ONCE with READ_ONCE
        mm: replace ACCESS_ONCE with READ_ONCE or barriers
        kernel: Provide READ_ONCE and ASSIGN_ONCE
      60815cf2
    • L
      Merge tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux · bfc7249c
      Linus Torvalds 提交于
      Pull clk framework updates from Mike Turquette:
       "This is much later than usual due to several last minute bugs that had
        to be addressed.  As usual the majority of changes are new drivers and
        modifications to existing drivers.  The core recieved many fixes along
        with the groundwork for several large changes coming in the future
        which will better parition clock providers from clock consumers"
      
      * tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux: (86 commits)
        clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated
        ARM: OMAP3: clock: fix boot breakage in legacy mode
        ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs
        clk: Really fix deadlock with mmap_sem
        clk: mmp: fix sparse non static symbol warning
        clk: Change clk_ops->determine_rate to return a clk_hw as the best parent
        clk: change clk_debugfs_add_file to take a struct clk_hw
        clk: Don't expose __clk_get_accuracy
        clk: Don't try to use a struct clk* after it could have been freed
        clk: Remove unused function __clk_get_prepare_count
        clk: samsung: Fix double add of syscore ops after driver rebind
        clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi
        clk: samsung: exynos4415: Fix build with PM_SLEEP disabled
        clk: samsung: remove unnecessary inclusion of header files from clk.h
        clk: samsung: remove unnecessary CONFIG_OF from clk.c
        clk: samsung: Spelling s/bwtween/between/
        clk: rockchip: Add support for the mmc clock phases using the framework
        clk: rockchip: add bindings for the mmc clocks
        clk: rockchip: rk3288 export i2s0_clkout for use in DT
        clk: rockchip: use clock ID for DMC (memory controller) on rk3288
        ...
      bfc7249c
    • L
      Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · a4e1328a
      Linus Torvalds 提交于
      Pull more i2c updates from Wolfram Sang:
       "Included are two bugfixes needing some bigger refactoring (sh_mobile:
        deferred probe with DMA, mv64xxx: fix offload support) and one
        deprecated driver removal I thought would go in via ppc but I
        misunderstood.  It has a proper ack from BenH"
      
      * 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: sh_mobile: fix uninitialized var when debug is enabled
        macintosh: therm_pm72: delete deprecated driver
        i2c: sh_mobile: I2C_SH_MOBILE should depend on HAS_DMA
        i2c: sh_mobile: rework deferred probing
        i2c: sh_mobile: refactor DMA setup
        i2c: mv64xxx: rework offload support to fix several problems
        i2c: mv64xxx: use BIT() macro for register value definitions
      a4e1328a
    • L
      Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · cdce6ac2
      Linus Torvalds 提交于
      Pull SCSI update from James Bottomley:
       "This is a much shorter set of patches that were on the go but didn't
        make it in to the early pull request for the merge window.  It's
        really a set of bug fixes plus some final cleanup work on the new tag
        queue API"
      
      * tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        storvsc: ring buffer failures may result in I/O freeze
        ipr: set scsi_level correctly for disk arrays
        ipr: add support for async scanning to speed up boot
        scsi_debug: fix missing "break;" in SDEBUG_UA_CAPACITY_CHANGED case
        scsi_debug: take sdebug_host_list_lock when changing capacity
        scsi_debug: improve driver description in Kconfig
        scsi_debug: fix compare and write errors
        qla2xxx: fix race in handling rport deletion during recovery causes panic
        scsi: blacklist RSOC for Microsoft iSCSI target devices
        scsi: fix random memory corruption with scsi-mq + T10 PI
        Revert "[SCSI] mpt3sas: Remove phys on topology change"
        Revert "[SCSI] mpt2sas: Remove phys on topology change."
        esas2r: Correct typos of "validate" in a comment
        fc: FCP_PTA_SIMPLE is 0
        ibmvfc: remove unused tag variable
        scsi: remove MSG_*_TAG defines
        scsi: remove scsi_set_tag_type
        scsi: remove scsi_get_tag_type
        scsi: never drop to untagged mode during queue ramp down
        scsi: remove ->change_queue_type method
      cdce6ac2
    • L
      Merge tag 'pm-config-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 5d6a5468
      Linus Torvalds 提交于
      Pull CONFIG_PM_RUNTIME elimination from Rafael Wysocki:
       "This removes the last few uses of CONFIG_PM_RUNTIME introduced
        recently and makes that config option finally go away.
      
        CONFIG_PM will be available directly from the menu now and also it
        will be selected automatically if CONFIG_SUSPEND or CONFIG_HIBERNATION
        is set"
      
      * tag 'pm-config-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        PM: Eliminate CONFIG_PM_RUNTIME
        tty: 8250_omap: Replace CONFIG_PM_RUNTIME with CONFIG_PM
        sound: sst-haswell-pcm: Replace CONFIG_PM_RUNTIME with CONFIG_PM
        spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
      5d6a5468
    • L
      Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild · 787140ad
      Linus Torvalds 提交于
      Pull misc kbuild changes from Michal Marek:
       "There are only a few things in the misc branch:
      
         - Fix for bugon.cocci semantic patch
         - Kdevelop4 files are .gitignored
         - Put make binrpm-pkg on diet"
      
      * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
        scripts/package: binrpm-pkg do not create source and devel package
        .gitignore: Add Kdevelop4 project files
        bugon.cocci: fix Options at the macro
      787140ad
    • L
      Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild · d08372ca
      Linus Torvalds 提交于
      Pull kbuild updates from Michal Marek:
       "Here are the kbuild changes for v3.19-rc1:
      
         - Cleanups and deduplication in the main Makefile and
           scripts/Makefile.*
         - Sort the output of *config targets in make help
         - Old <linux/version.h> is always removed to avoid a surprise during
           bisecting
         - Warning fix in kconfig"
      
      * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
        kbuild: remove redundant -rR flag of hdr-inst
        kbuild: Fix make help-<board series> on powerpc
        kbuild: Automatically remove stale <linux/version.h> file
        kconfig: Fix warning "‘jump’ may be used uninitialized"
        Makefile: sort list of defconfig targets in make help output
        kbuild: Remove duplicate $(cmd) definition in Makefile.clean
        kbuild: collect shorthands into scripts/Kbuild.include
      d08372ca
  4. 20 12月, 2014 28 次提交